'Smit's book displays high levels of expertise in the fields of biology and evolutionary theory. It is a treasure trove of interesting examples and fascinating case studies. Furthermore, the application of IFT to issues of language evolution and human nature is no doubt a contribution to both fields.' Ryan M. Nefdt, The Philosophical Quarterly
1. The major evolutionary transitions and Homo loquens; 2. The conceptual foundation of human nature; 3. Inclusive fitness theory and genomic imprinting; 4. Evolution, teleology, and the argument from design; 5. Dualism, monism and evolutionary psychology; 6. Weismann, Wittgenstein and the homunculus fallacy; 7. Language evolution: doing things with words versus translating thought into language; 8. Moral behaviour: a conceptual elaboration of Darwin's ideas; 9. Epilogue.